Soduku is a famous game, which is known all over the world, I tried hard level but it took me nearly an hour to finish it, have you ever had a sense that you virtually finish it and you find sth wrong so you have to do it again
Do you know where soduku comes from , Japan, right?

Yeah, I had to redo one problem when I looked at one row and there was two 9's. I don't know how the heck I got two 9's in one row. Man, it was a waste of time and false alarm. I was so ready to congratulate myself for beating the hard level.

Yeah. I didn't know it before though. I saw one guy who was playing it on the train, and I got really curious. A box with numbers and he looked so hooked was impossible for me to believe. I went to the bookstore to check it out later then. And I've been playing it online for free ever since.

My mother is crazy about them. Frist thing, she solves sudoku and in newspaper then crossword and then everything else.. I also have Ksudoku installed into my linux pc.. But solving them in pc is not so interesting.. and actually I'm not so carazy of them too.